Device for stretching card-clothing



(No Model.)`

G. E. KIMBALL.

DEVICE vFOR STRETGHING GARD CLOTHING. A1\0. 320,'795. Patented June 23,1885.

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UNITED STATES PATENT OFFICE.

GEORGE E. KIMBALL, OF FRANKLIN, MASSACHUSETTS.

DEVICE FOR STRETCHING CARD-CLOTHING.

SPECIFICATION forming part Qf Letters Patent No. 320,795, dated June 23,1885.

Application filed January l5, i884. (No model.)

To all whom it may concern.'

Be it known that I, GEORGE E. KIMBALL, a citizen of the United States,and a resident of Franklin, in the county of Norfolk and State ofMassachusetts, have invented certain new and useful Improvements inDevices for Stretching Card-Clothing, and I do hereby declare that thefollowing is a full, clear, and exact description ofthe invent-ion,which will enable others skilled in the art to which it appertains tomake and use the same, reference being had to the accompanying drawings,which form a part of this specification, and in which- Figure l is aperspective view of a portion of a carding-cylinder, showing my improveddevice for stretching the card-cloth in position. Fig. 2 is a similarview of the device detached. Fig. 3 is a top view of the same; and Fig.4 is a longitudinal vertical section of the same.

Similar letters of reference indicate corresponding parts in all thefigures.

My invention has relation to devices for stretching card-clothing uponcarding-cylinders; and it consists in the improved construction andcombination of parts of the same, as hereinafter more fully describedand claimed.

In the accompanying drawings, the letter A indicates thecarding-cyliuder upon which the card-sheets B are stretched parallelwith the axle of the cylinder. When the cardingcylinder is used, one ormore of the sheets .will often become loosened, forming blisters,

and the points of the cards are apt to become worn unduly by coming intoo close contact with the doter, thus impairing the usefulness of thecards.

For the purpose of stretching the blistered card-sheets, it has beencustomary to remove the sheets, and thereupon tacking them upon thecylinder in the same manner as in tacking new sheets upon the cylinder,and this process, together with the subsequent sharpening of the teeth,has consumed a great length of time, in which the machine has beenobliged to stand idle; and to avoid this waste of time, and toaccomplish a speedy and effectual stretching of the blistercdcard-sheets, I

l have constructed the device which I will proceed to describe. Thisdevice consists of a bar, C, having a longitudinal recess, D, in itsunder side, and having two or more orless downwardly-bent arms, E,provided with sharp-v ened points F, and the upper side of the bar hastwo shoulders, G, forming a recess between them.

A bar, H, having arms I, similar to the arms E, and sharpened points J,at the ends of the arms, slides and fits in the longitudinal recess inthe under side of the bar O, and is provided with an upwardly-projectingpin or bolt, K, which projects up l,through and slides in a longitudinalslot, L, in the bottom of the recess formed by the shoulders G, and isprovided at its upper end with an eccentric disk, M, of a diameter equalto the width.. of the recess, thus fitting snugly between the shoulders,and-having two thumb-wings, N, or similar means for affording a goodhold upon its upper side.

It will now be seen that by turning the eccentric by its wings thesliding bar will be drawn fartherin or pushed farther ont in the recessin bar O, thus shortening or lengthening the distance between thesharpened points, and if a blister is found upon one of the card-sheets,which is easily discovered by the shining appearance of the worncard-teetl1,the tacks conning the one edge of the sheet are removed, thestretcher placed with its points p enetratinginto the sheet in itsshortened position, whereupon the eccentric is turned,lengthening thestretcher until the sheet is stretched to its proper width and the loweredge again tacked down, which process may be continued until the entireblister is stretched, thus avoiding the loss of time accompanying theprocess of removing the entire covering of sheets and again replacingthem.

Having thus described my invention, I claim- The combination of a barhaving downwardly-bent pointed outer ends, having a longitudinal recessin its under side, and having two shoulders forming a recess betweenthem, having a longitudinal slot at its inner portion, with a bar havingdownwardly-bent pointed outer ends, sliding with its inner end in theIongitudinal recess in the other bar, a pin or boit projecting throughthe slot between the shoulders upon the recessed and slotted bar, and aneccentric disk turning upon the upper i end of the said pin, fittingbetween the shoulders upon the recessed bar, and having Wings or similarmeans for holding it While turning it, as and for the purpose shown andset forth.

In testimony that I claim the foregoing as Io my own I have hereuntoaffixed my signature in presence of two Witnesses.

GEORGE E. KIMBALL.

